Journal-bearing.



c. DUNNING.

JOURNAL" BEARING. I APPLIOATIOIIILBD JULY 27,1908.

. 907,324, i Patented Dec. 22, 1908.

2 SHEETS-SHEET 1.

G. DUNN IN G.

JOURNAL BEARING.

Y APPlvIIIOATION FILED JULYZ'?, 1908. .Dec- 22 2 sums-SHEET 2.

E limi K l *which the following is a specii'ication, refere ing which may be readily substituted for the and similar vehicles.

` of their removal therefrom. It will be noted use so that it may be readily substituted for which latter, as above stated, is removably ,CHARLES DUNlNG, OF NEW ORLEANS, LOUISIANA.

JOURNAL-BE ARIN G.

Specification of Letterslatent.

PatentediDec. 22, 1908.

'Applieationled July 27, 1908. Serial No. 445,480.

To all whom it may concern: l

- Be it known that I, CHARLES DUNNING, a i citizen of the United States, residing at New Orleans, in the parish of Orleans and State of Louisiana, have' invented certain new and useful Improvements in Journal-Bearings, of

ence being had to the accompanying drawings. This invention relates to improvements in journal bearings for railway cars and the like. The object of the invention is to provide a simple and practical antifriction roller bearordinary` bearings now in general usf on steam and electric railway cars, street cars,

With the above and other objects in view, the invention consists of the novel features of construction and the combination and arrangement' of parts hereinafter fully described and claimed, and illustrated in the acj companying drawin s, in which- Figure 1 is a side elevation of the improved journal; Fig. 2 isa bottom plan view; Fig. 3 is a front end elevation; Fig. 4 is a horizontal section taken along' the line 4-4 in Fig. 3; and Fig. 5 is a vertical transverse section.

The improved journal bearing comprisesa body 1 which is preferably similar in size and shape to the ordinary journal bearing now in the same; and it is composed of two sections 2, 3, the latter of which is adapted to fit in a recess 4 in one end of the former and to'be retained therein by a screw, bolt or similar fastening 5,. Formed in the bottom of the body 1 is the usual semi-cylindrical recess 6 to receive the journal or axle but the latter, instead of contacting the wall of said recess, is engaged by two anti-friction rollers 7 arranged in cylindrical cavities 8 formed in the inner portion of the section 2 and having portions in communication with the recess 6 so that the peripheries of said rollers project into the latter, as clearly shown in Fig. 5. At the ,ends of the rollers 7 are reduced trunnions 9, 10 ,.the former of which are disposed in openings 11 formed in the closed end of the section 2 concentric with the cavities 8. The other trunni'ons 10 are arrangedin similar openings 12 formed in the other section 3,

arranged in therecess 4 sowas to permit of the insertion of the rollers 7 in the cavities 8 and that the recess 4 is in the form of a transverse channel extending across one endv of the section 2 of the body and that t-he section 3 closes the open ends of the cavities 8. Vi'hen the section 3 is in position and secured by the screw 5, its openings 12 are concentric with said cavities 8. Formed in each of the openings 1'1, 12 is a seiies of annular grooves or raceways 13 to receive annular series of antifriction bearing balls 14, which latter engage the trunnions or journals 9, l0, as shown more clearly in Fig. 4 of the drawings.

`From the foregoing it will be seen that the improved bearing may be readily substituted for one of the ordinary journal bear-V ings now in general use on railway cars and the like, and that it will greatly reduce friction and last much longer than the ordinary journal bearings. Q

It will be noted that in the event of one of the rollers breaking there will be no material damage resulting because the shape of the recess 6 is such as to serve as a bearing surface for the journal or axle.

Having thus described the invention what is claimed is:

1. The herein described journal bearing for a railway car, comprisingv two sections, one being formed in its bottoinwith a longitudinal recess to receive the journal and with roller receiving cavities in communication with said recess, said cavities being open at one end and closed at the other end, the

of said rollers, a fastening uniting the twosections, and cylindrical rollers arranged in the cavities of the first mentioned section and formed at vits ends with trunnions arranged in said concentric openings or recesses in both sections. j

2. The hereindescribed journal bearing for a railway car comprising two sections, one being of substantially rectangular form and having in its bottom a longitudinal recess to receive the journal, said section also having a transverse recess at one end and cavities formed in its intermediate portion and in communication with both of said recesses, the closed ends of said' cavities being formed with openings or recesses, the other section of the bearing being shaped to enter the transverse recess in the first mentioned section to close the open ends of said cavities and being formed with openings or recesses concentric With said cavities, a bolt detach ably uniting the two sections, and anti-friction rollers arranged in the cavities ofthe first mentioned section and having trunnions at their ends arrangedy in said concentric openings or recesses in the two sections.

3. A journal bearing comprising a bodyT having one section formed in its bottom `with a recess to receive the journal, in one end with a transverse recess and in its interior part with ycavities in communication with both of the first mentioned recesses, the closed end of said body having openings concentric with said cavities and formed in their walls with annular raceways, a second section for the body adapted to iit vin the recess in the end of the iirst mentioned section and formed with openings concentric with said `cavities and having ,in their Walls annular raceways, means for fastening the two sections of the body together, anti-friction rollers arranged in said cavities and having at their ends trunnions 'disposed in the openings in said sections of the body, and annular series of anti-friction bearing balls arranged in saidv raceways of the two sections and engaged with said trunnions, substan-.

tially as described.

In testimony whereof I hereunto aiiX-my signature in the presence of two witnesses. CHARLES DUNNING.

Witnesses:

C. N'. HERO, ANDREW HERO. 

